18102850624073 has 2 divisors, whose sum is σ = 18102850624074. Its totient is φ = 18102850624072.

The previous prime is 18102850624007. The next prime is 18102850624081. The reversal of 18102850624073 is 37042605820181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11224463185849 + 6878387438224 = 3350293^2 + 2622668^2 .

It is a cyclic number.

It is not a de Polignac number, because 18102850624073 - 2⁸ = 18102850623817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (18102850624373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9051425312036 + 9051425312037.

It is an arithmetic number, because the mean of its divisors is an integer number (9051425312037).

Almost surely, 2^{18102850624073} is an apocalyptic number.

It is an amenable number.

18102850624073 is a deficient number, since it is larger than the sum of its proper divisors (1).

18102850624073 is an equidigital number, since it uses as much as digits as its factorization.

18102850624073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 18102850624073 in words is "eighteen trillion, one hundred two billion, eight hundred fifty million, six hundred twenty-four thousand, seventy-three".